COPD & Emphysema Support Group
COPD is a progressive disease characterized by airflow obstruction or limitation. Emphysema is characterized by loss of elasticity of the lung tissue, destruction of structures supporting the alveoli and of capillaries feeding the alveoli. Both have symptoms that include shortness of breath, among other respiratory troubles. If you are a COPD or Emphysema sufferer, join...

Also Ary nasal gel helps.
i will mention the "winter" humidifier bottle problem though as i'm playing it again.
==in the winter the water concentrates in the line & pours water into my nose
so i tried just a humidifier again to no avail. soon my nose is bleeding cuz of the dryness.
so back to the water bottle on the concentrator BUT ALSO (ask your company to give you) an "in line water trap"
--- i have to put the water trap right before the canula & empty the water trap at least once a day.
the concentrator water bottle is a pain for me in the winter, but i'm finding once again i just can't go without it :(
also at night i have found the "breath right" (name brand) nose strips help me alot as i'm a mouth breather anyway.